"True," said Captain Nicholson. "But I have an idea. Have you ever been aboard a submarine in action?"
"I have been aboard many submarines, yes," replied Lord Hastings, "but one in action, no."
"Then why not come with me?"
"I would like to," said Lord Hastings, "but what of the Sylph?"
"Your first officer could take command until you returned."
"No," said Lord Hastings, "it can't be done." He was struck with a sudden idea, and turned to Jack and Frank. "How would you two lads like to make such an excursion?" he asked.
"We would like nothing better, sir," replied Frank.
"Indeed, we would like it immensely," agreed Jack.
Lord Hastings turned again to Captain Nicholson.
"Why not take these two lads as substitutes for me?" he asked.